<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			function countDown(time) {
				var nowTime = +new Date();
				var inputeTime = +new Date(time);
				var times = (inputeTime - nowTime) / 1000;
				var d = parseInt(times / 60 / 60 / 24);
				d = d < 10 ? '0' + d : d;
				var h = parseInt(times / 60 / 60 % 24);
				h = h < 10 ? '0' + h : h;
				var m = parseInt(times / 60 % 60);
				m = m < 10 ? '0' + m : m;
				var s = parseInt(times % 60);
				s = s < 10 ? '0' + s : s;
				return d + '天' + h + '时' + m + '分' + s + '秒';				
			}
			console.log(countDown('2021-5-16 10:00:00'));
		</script>
	</head>
	<body>
	</body>
</html>
